18995340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1$

素因数の和:117

約数の個数: 192

約数和(自身を含む): 67737600

約数和(自身を除く): 48742260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 49, 52, 60, 65, 70, 71, 78, 84, 91, 98, 105, 130, 140, 142, 147, 156, 182, 195, 196, 210, 213, 245, 260, 273, 284, 294, 343, 355, 364, 390, 420, 426, 455, 490, 497, 546, 588, 637, 686, 710, 735, 780, 852, 910, 923, 980, 994, 1029, 1065, 1092, 1274, 1365, 1372, 1420, 1470, 1491, 1715, 1820, 1846, 1911, 1988, 2058, 2130, 2485, 2548, 2730, 2769, 2940, 2982, 3185, 3430, 3479, 3692, 3822, 4116, 4260, 4459, 4615, 4970, 5145, 5460, 5538, 5964, 6370, 6461, 6860, 6958, 7455, 7644, 8918, 9230, 9555, 9940, 10290, 10437, 11076, 12740, 12922, 13377, 13845, 13916, 14910, 17395, 17836, 18460, 19110, 19383, 20580, 20874, 22295, 24353, 25844, 26754, 27690, 29820, 32305, 34790, 38220, 38766, 41748, 44590, 45227, 48706, 52185, 53508, 55380, 64610, 66885, 69580, 73059, 77532, 89180, 90454, 96915, 97412, 104370, 121765, 129220, 133770, 135681, 146118, 180908, 193830, 208740, 226135, 243530, 267540, 271362, 292236, 316589, 365295, 387660, 452270, 487060, 542724, 633178, 678405, 730590, 904540, 949767, 1266356, 1356810, 1461180, 1582945, 1899534, 2713620, 3165890, 3799068, 4748835, 6331780, 9497670, 18995340]

約数ペア:

[(1, 18995340), (2, 9497670), (3, 6331780), (4, 4748835), (5, 3799068), (6, 3165890), (7, 2713620), (10, 1899534), (12, 1582945), (13, 1461180), (14, 1356810), (15, 1266356), (20, 949767), (21, 904540), (26, 730590), (28, 678405), (30, 633178), (35, 542724), (39, 487060), (42, 452270), (49, 387660), (52, 365295), (60, 316589), (65, 292236), (70, 271362), (71, 267540), (78, 243530), (84, 226135), (91, 208740), (98, 193830), (105, 180908), (130, 146118), (140, 135681), (142, 133770), (147, 129220), (156, 121765), (182, 104370), (195, 97412), (196, 96915), (210, 90454), (213, 89180), (245, 77532), (260, 73059), (273, 69580), (284, 66885), (294, 64610), (343, 55380), (355, 53508), (364, 52185), (390, 48706), (420, 45227), (426, 44590), (455, 41748), (490, 38766), (497, 38220), (546, 34790), (588, 32305), (637, 29820), (686, 27690), (710, 26754), (735, 25844), (780, 24353), (852, 22295), (910, 20874), (923, 20580), (980, 19383), (994, 19110), (1029, 18460), (1065, 17836), (1092, 17395), (1274, 14910), (1365, 13916), (1372, 13845), (1420, 13377), (1470, 12922), (1491, 12740), (1715, 11076), (1820, 10437), (1846, 10290), (1911, 9940), (1988, 9555), (2058, 9230), (2130, 8918), (2485, 7644), (2548, 7455), (2730, 6958), (2769, 6860), (2940, 6461), (2982, 6370), (3185, 5964), (3430, 5538), (3479, 5460), (3692, 5145), (3822, 4970), (4116, 4615), (4260, 4459)]